CHP SERIES
METAL GLAZE™ GENERAL PURPOSE
SURFACE MOUNT POWER RESISTOR
·
·
·
·
·
Up to 2 watts
0.2 ohm to 2.2 megohm range
Up to 1000 volts
150°C maximum operating temperature
RoHS-compliant version available
Metal Glaze
TM
thick
film element fired
at 1000°C to solid
ceramic substrate
High
temperature
dielectric
coating
Solder over nickel
barrier
CHP SPECIFICATIONS:
Size
Industry
IRC
Code
1
Footprint
B
D
F
H
1
Maximum
Working Maximum
Voltage
400
600
700
1000
2
Type
Power Rating Voltage
2
200
300
350
500
1206
2010
2512
3610
CHP 1/8 1/4W @ 70°C
CHP 1/2 1/2W @ 70°C
CHP 1
CHP 2
1W @ 70°C
2W @ 25°C
1.33W @ 70°C
Resistance
Range (ohms)
3
0.1 to 0.99
1.0 to 1.0 M
20 to 348K
0.1 to 0.99
1.0 to 348K
0.1 to 0.99
1.0 to 2.21M
20 to 348K
0.1 to 0.99
1.0 to 2.21M
3
Tolerance
(±%)
3
1, 2, 5
1, 2, 5
0.25, 0.5
1, 2, 5
1, 2, 5
1, 2, 5
1, 2, 5
0.25, 0.5
1, 2, 5
1, 2, 5
TCR
Product
(ppm/°C)
3
Category
100
Low Range
50, 100
Standard
50, 100
Tight Tolerance
100
Low Range
50, 100
Standard
100
Low Range
50, 100
Standard
50, 100
Tight Tolerance
100
Low Range
50, 100
Standard
See page 8 for product dimensions, recommended solder pads, and standard packaging.
Not to exceed
PxR
Consult factory for tighter TCR, tolerance, or resistance values.
CHP PERFORMANCE CHARACTERISTICS:
Characteristics
Temperature Coefficient
Thermal Shock
Low Temperature Operation
Short Time Overload
High Temperature Exposure
Resistance to Bonding
Exposure
Solderability
Moisture Resistance
Life Test
Terminal Adhesion Strength
±0.5% +0.01 ohm
±0.25% +0.01 ohm
±0.5% +0.01 ohm
±1% for R>100K ohm
±0.5% +0.01 ohm
±0.25% 0.01 ohm
Maximum Change
Test Method
As specified
MIL-R-55342E Par 4.7.9 (-55°C +125°C)
MIL-R-55342E Par 4.7.3 (-65°C +150°C, 5 cycles)
MIL-R-55342E Par 4.7.4 (-65°C @ working voltage)
MIL-R-55342E Par 4.7.5
2.5 x
for 5 seconds
MIL-R-55342E Par 4.7.6 (+150°C for 100 hours)
MIL-R-55342E Par 4.7.7
(Reflow soldered to board at 260°C for 10 seconds)
95% minimum coverage MIL-STD-202, Method 208 (245°C for 5 seconds)
MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours)
±0.5% +0.01 ohm
MIL-R-55342E Par 4.7.10 (2000 hour at 70°C intermittent)
±0.5% +0.01 ohm
1200 gram push from underside of mounted chip for 60 seconds
±1% +0.01 ohm
no mechanical damage
±1% + 0.01 ohm
Chip mounted in center of 90mm long board, deflected 1mm so as to
no mechanical damage exert pull on chip contacts for 5 seconds
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road
•
Boone, North Carolina 28607-1860
•
Tel: 828-264-8861
•
Fax: 828-264-8866
•
www.irctt.com
A subsidiary of
TT electronics plc
CHP POWER DERATING CURVE:
CHP REPETITIVE SURGE CURVE:
Percent Relative Power
Ambient Temperature (°C)
Surge or Pulse duration (seconds)
Note: Use for repetitive pulses where the average power dissipation is
not to exceed the component rating at 70°C. Surge handling capacity
for low-repetitive surges may be significantly greater than shown above.
Contact factory for recommendations.
HOW TO ORDER:
Sample Part No.
CHP 1
100
Peak Power (watts)
2203
F
13
LF
IRC Type
(CHP 1/8, CHP 1/2, CHP 1, or CHP 2)
Temperature Coefficient
(50 or 100)
Resistance Value
(100 ohms and greater - First 3 significant figures plus 4th digit multiplier)
Example: 100 ohms = 1000, 1000 ohms = 1001, 150,000 ohms = 1503
(Less than 100 ohms - "R" is used to designate decimal)
Example: 51 ohms = 51R0, 1 ohm = 1R00, 0.25 ohm = R250
Tolerance
(C = 0.25%, D = 0.5%, F = 1.0%, G = 2.0%, J = 5.0%)
Packaging Code*
(BLK = Bulk, 7=7" Reel, 13=13" Reel)
*See page 8 for packaging details
Lead Free Construction
*For packaging information, see Appendix “A”.
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road
•
Boone, North Carolina 28607-1860
•
Tel: 828-264-8861
•
Fax: 828-264-8866
•
www.irctt.com
ISO-9001
Registered
CHP FAMILY STANDARD SIZES, SOLDER PADS AND PACKAGING:
DIMENSIONS
(Inches and (mm)):
L
C
W
Size Code
B
C
D
E
F
H
Industry
Footprint
1206
1206
2010
2010
2512
3610
Actual Size
L
0.128±0.007
(3.25±0.18)
0.128±0.007
(3.25±0.18)
0.200±0.010
(5.08±0.25)
0.200±0.010
(5.08±0.25)
0.251±0.010
(6.38±0.25)
0.367±0.010
(9.32±0.25)
W
0.057±0.006
(1.45±0.15)
0.063±0.010
(1.60±0.25)
0.079±0.006
(2.01±0.15)
0.105±0.006
(2.67±0.15)
0.079±0.006
(2.01±0.15)
0.105±0.006
(2.67±0.15)
C
0.020±0.010
(0.51±0.25)
0.020±0.010
(0.51±0.25)
0.030±0.010
(0.761±0.25)
0.040±0.015
(1.02±0.38)
0.040±0.010
(1.02±0.25)
0.050±0.010
(1.27±0.25)
RECOMMENDED SOLDER PAD DIMENSIONS (REFLOW):
To ensure excellent solderability performance, IRC recommends the following pad design. This design will provide a
large repeatable solder fillet to the CHP resistor on reflow processes and will provide maximum heat transfer to the PC
board in high power applications. By placing the CHP on the solder paste while the paste is in the "tacky" state, the CHP
will be held in position until solder reflow begins. The pad design then uses the surface tension of the molten solder to
pull the component to the center of the solder pad. The placement of a via rising above the board level directly beneath
the CHP is not recommended.
Size
Code
B&C
D
E
F
H
Industry
Footprint
1206
2010
2010
2512
3610
Dimensions (Inches and (mm))
A
0.076
(1.93)
0.111
(2.82)
0.170
(4.32)
0.121
(3.07)
0.170
(4.32)
B
0.093
(2.36)
0.126
(3.20)
0.160
(4.06)
0.126
(3.20)
0.160
(4.06)
C
0.058
(1.47)
0.096
(2.44)
0.072
(1.83)
0.127
(3.23)
0.213
(5.41)
D
E
F
0.211
(5.36)
0.318
(8.08)
0.098 0.032
(2.49) (0.81)
0.152 0.040
(3.86) (1.02)
A
B
E
F
C
A
0.132 0.044 0.412
(3.35) (1.12) (10.46)
0.183 0.040
(4.65) (1.02)
0.369
(9.37)
D
0.273 0.044 0.553
(6.93) (1.12) (14.05)
STANDARD REEL PACKAGING PER EIA-481:
Size Code
B&C
D
E
F
H
Industry Footprint
1206
2010
2010
2512
3610
Reel Diameter*
7"
13"
7"
13"
7"
13"
13"
7"
Quantity Per Reel
2,500 max.
10,000 max.
1,500 max.
5,000 max.
1,500 max.
5,000 max.
5,000 max.
1,500 max.
12mm
24mm
4mm
4mm
12mm
12mm
4mm
4mm
8mm
4mm
Carrier Tape Component
Pitch
Width
* The 13" reel is considered standard and will be supplied unless otherwise specified.
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road
•
Boone, North Carolina 28607-1860
•
Tel: 828-264-8861
•
Fax: 828-264-8866
•
www.irctt.com
3
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